Lines Matching defs:buddy

875  * If this is less than the 2nd largest possible page, check if the buddy
911  * Freeing function for a buddy system allocator.
913  * The concept of a buddy system is to maintain direct-mapped table
928  * If a block is freed, and its buddy is also free, then this
942 	struct page *buddy;
962 		buddy = find_buddy_page_pfn(page, pfn, order, &buddy_pfn);
963 		if (!buddy)
973 			buddy_mt = get_pfnblock_migratetype(buddy, buddy_pfn);
982 		 * Our buddy is free or it is CONFIG_DEBUG_PAGEALLOC guard page,
985 		if (page_is_guard(buddy))
986 			clear_page_guard(zone, buddy, order);
988 			__del_page_from_free_list(buddy, zone, order, buddy_mt);
992 			 * Match buddy type. This ensures that an
996 			change_pageblock_range(buddy, order, migratetype);
1335 		/* Do not let hwpoison pages hit pcplists/buddy */
1515 	/* Caller removed page from freelist, buddy info cleared! */
1695  * by considering the behavior of a buddy system containing a single
1714 		 * merge back to allocator when buddy will be freed.
2041 /* Look for a buddy that straddles start_pfn */
2062 	 * Found a preceding buddy, but does it straddle?
2087  * might be part of a larger buddy spanning multiple pageblocks.
2104 	struct page *buddy;
2120 	buddy = pfn_to_page(buddy_pfn);
2121 	/* We're a part of a larger buddy */
2122 	if (PageBuddy(buddy) && buddy_order(buddy) > pageblock_order) {
2123 		int order = buddy_order(buddy);
2125 		del_page_from_free_list(buddy, zone, order,
2126 					get_pfnblock_migratetype(buddy, buddy_pfn));
2128 		split_large_buddy(zone, buddy, buddy_pfn, order, FPI_NONE);
2443  * Do the hard work of removing an element from the buddy allocator.
2512  * Obtain a specified number of elements from the buddy allocator, all under
2537 		 * Split buddy pages returned by expand() are received here in
2645  * Spill all of this CPU's per-cpu pages back into the buddy allocator.
2736  * Spill all the per-cpu pages from all CPUs back into the buddy allocator.
5188  * This is the 'heart' of the zoned buddy allocator.
5755  * the buddy list. This is safe since pageset manipulation is done
6639  * pagelist can have before it gets flushed back to buddy allocator.
6952 	 * In contrast to the buddy, we allow for orders here that exceed
6975 	 * allocator removing them from the buddy system.  This way
6981 	 * put back to page allocator so that buddy can use them.
7007 	 * buddy system.  After the migration of in-use huge pages is completed,
7009 	 * hugepages are properly released to the buddy system.
7029 	 * isolated thus they won't get removed from buddy.
7172  * intended for allocation requests which can not be fulfilled with the buddy
7383 		 * The HWPoisoned page may be not in buddy system, and
7446  * buddy allocator.
7475  * Take a page that will be marked as poisoned off the buddy allocator.